Предмет: Математика, автор: vovabog333654

На сколько процентов бригада недовыполнила план, если рабочие изготовили 270 деталей из намеченных 300?

Ответы

Автор ответа: bro5155
19

10%

бригада не до выполняла 10%


vovabog333654: а можешь ещё вот на это ответить ( Васе задали прочитать на лето 12 книг. Он очень увлёкся чтением и прочитал 18 книг. На сколько процентов он перевыполнил план?)
iramazurk: На 50%
bro5155: че на 50%??
bro5155: ааа сори не туда написал
vovabog333654: а тут что будет? ( В саду цветут яблони, груши и сливы. Всего за день было собрано 2 кг яблок, 18 кг груш и 12 кг слив. Какой процент составляют сливы от общего урожая?)
Автор ответа: iramazurk
11

Ответ:

Пошаговое объяснение:

300 - 100%

270 - х %

300/270 = 100/х

х = 270 * 100 / 300

х = 27000/300

х = 90 %

100% - 90% = 10%

Ответ : на 10%


vovabog333654: а незнаешь ещё ( В саду цветут яблони, груши и сливы. Всего за день было собрано 2 кг яблок, 18 кг груш и 12 кг слив. Какой процент составляют сливы от общего урожая?)
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